To determine if 8991 is a prime number or a composite number, we simply look at the factors for 8991.
If the factors of 8991 are only 8991 and 1, then we know that 8991 is a prime number. Otherwise, 8991 is a composite number.
To explain better, if 8991 is only divisible by 1 and 8991, then it is a prime number, and if 8991 is divisible by more than 8991 and 1, then it is a composite number.
The factors of 8991 are as follows:
1, 3, 9, 27, 37, 81, 111, 243, 333, 999, 2997, 8991
Therefore, since 8991 is divisible by more than one and itself, the answer to the
question "Is 8991 prime or composite?" is highlighted in blue below.
composite
Is 8992 prime or composite?
OK. Now you know that 8991 is a composite number. Use our logic above and see if
you can figure out if the next number on our list is prime or composite before you check your answer.
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